不同含水量晚籼稻谷对磷化氢的吸附性差异试验

摘要

Fumigated by phosphine,the absorbability of the late indica rice with different moisture content has big disparity.Fumigation maintains different effective concentration according to different dosage of unit grain.During the circulation fumigation of phosphine,based on the fumigation concentration set,with full consideration of the absorbability variation of late indica rice in various moisture content,we can not only determine accurately the fumigation dosage of unit grain,but also be conductive to an accurate grasp of the fumigation effective concentration lasting time of late indica rice with different moisture content in the circulation fumigation of phosphine,and help to maintain a reasonable and appropriate effective concentration and sufficient time sealed,to achieve a good fumigation effect.%不同含水量的晚籼稻谷磷化氢熏蒸,吸附性存在较大差异,单位粮食用药量不同,熏蒸有效浓度维持的时间不同。磷化氢环流熏蒸时,根据设定的熏蒸浓度,充分考虑不同含水量晚籼稻谷的吸附性差异,不仅能够准确确定单位粮食熏蒸用药量,而且有利于准确把握不同含水量晚籼稻谷磷化氢环流熏蒸有效浓度的维持时间,有利于合理保持合适的有效浓度和足够的密闭时间,熏蒸效果好。